Make sure seams between your plastic sheets overlap each other then tape them down.
How to secure plastic sheeting to ground.
Use your snap clamps to secure the plastic to the front and back ribs over your previous work.
If you pack tarp clips with your plastic sheeting most of these will work well for providing tie down locations.
Overlap any seams and tape them.
Drape the plastic sheeting over the frame.
Up the wall and fasten it there.
Additionally at the edges of your crawl space where the soil meets the walls leave several inches of sheeting allowance.
Push the edges of the plastic into the trench.
White tape is preferable duct tape has a top layer of polyethylene wrap an old piece of greenhouse plastic around the pvc before installing your new plastic.
And bring the plastic about 6 in.
Smooth the plastic over the top of the ground so it comes in contact with the soil and doesn t float above it.
Allowing a little slack or at least pulling on the plastic only enough to avoid wrinkles remove the wigglewires one at a time put the outer plastic in place and tack both layers in the channel.
Hold the top left corner of the first plastic sheet to the top corner of the first wall and staple it into place with a heavy duty staple gun.
Apply a polyethylene tape to the area where the pvc meets the greenhouse plastic.
Hammer masonry nails through 1 by 2 inch strips of pressure treated lumber to hold the top of the polyethylene in place.
Replace the soil into the trench so that the plastic is anchored down securely.
Stake the plastic down with landscape fabric stakes to keep it in place.
Dig a 3 inch deep trench around the edges of your garden bed.
Use the landscape fabric stakes and hammer them down into the soil around the edges to secure the sheeting to the soil.
Use 3 8 inch staples to fasten the plastic to the.
Rocks usually work well for keeping ground sheets in place.
Cover the dirt crawlspace with a plastic moisture polyethylene vapor barrier.
Leave an extra foot or two on the sides to help secure the plastic and trim any excess.